Open AccessThe refractive Indices of sulphuric acid at different concentrations
Author(s) -
Victor Herbert Veley,
John Manley
Publication year - 1905
Publication title -
proceedings of the royal society of london. series a, containing papers of a mathematical and physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9150
pISSN - 0950-1207
DOI - 10.1098/rspa.1905.0053
Subject(s) - refractive index , cauchy distribution , dispersion (optics) , analytical chemistry (journal) , mathematics , chemistry , mineralogy , optics , statistics , physics , chromatography
During the past 60 years various determinations have been published of the refractive indices of sulphuric acid for different concentrations and different rays for the purposes of tracing out the relationships between the refractive energies, dispersion, and chemical constitution. Some observers have published isolated determinations, others more or less connected series, according to the object in view. Baden Powell appears to have been the first to give values of the refractive indices of the Fraunhofer lines B, C, D, E, F, G, and H for a sample of acidd 18·5/? = 1·835 (about 94·5 per cent, concentration), though the temperature of the water density is not given. The object of this work was for the purpose of comparing the observed results forμ B etc., with those calculated by Sir W. R. Hamilton’s modification of Cauchy’s dispersion formula.